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Avaliação da aplicação exógena de poliaminas no crescimento de calos de mangabeira (Hancornia speciosa Gomes)

Fraguas, Chrystiane Borges; Villa, Fabiola; Lima, Giuseppina Pace Pereira
Fonte: Soc Brasileira Fruticultura Publicador: Soc Brasileira Fruticultura
Tipo: Artigo de Revista Científica Formato: 1206-1210
POR
Relevância na Pesquisa
26.18%
The effect of polyamines spermine and spermidine in the calluses growth of Hancornia speciosa Gomes was studied. Calluses with 0.5 cm diameter were inoculated in Murashige & Skoog (1962) (MS) medium 50% + hidrolizated casein 100 mg L(-1) + yeast 200 mg L(-1), according to the treatments: A: spermine 1 mmol + 2.4-D 2 mg L(-1) + NAA 0.5 mg L(-1), B: spermidine 1 mmol + 2.4-D 2 mg L(-1) + NAA 0.5 mg L(-1), C: 2.4-D 2 mg L(-1) + NAA 0.5 mg U. There was not polyamine influence in the calluses growth. It was observed in the treated calluses with spermidine larger cellular putrescine concentration (582.37 mu g g mf-1) at 60 days, larger spermidine concentration (502.54 mu g g mf-1) and spermine (868.53 mu g g mf-1) at 40 days of cultivation, when the own polyamine was applied. It was concluded that the exogenous polyamine application in Hancornia speciosa does not provide an increase in the calluses growth. The oxidation promoted by long periods of in vitro cultivation induces an increase in the putrescine levels.; Este trabalho teve como objetivo estudar o efeito das poliaminas espermidina e espermina no crescimento de calos Hancornia speciosa Gomes. Calos com 0,5 cm de diâmetro foram inoculados em meio Murashige & Skoog (1962) (MS) a 50% + 100 mg L-1 de caseína hidrolisada + 200 mg L-1 de levedura de cerveja...

Avaliação da aplicação exógena de poliaminas no crescimento de calos de mangabeira (Hancornia speciosa Gomes)

Fráguas, Chrystiane Borges; Villa, Fabíola; Lima, Giuseppina Pace Pereira
Fonte: Sociedade Brasileira de Fruticultura Publicador: Sociedade Brasileira de Fruticultura
Tipo: Artigo de Revista Científica Formato: 1206-1210
POR
Relevância na Pesquisa
26.18%
Este trabalho teve como objetivo estudar o efeito das poliaminas espermidina e espermina no crescimento de calos Hancornia speciosa Gomes. Calos com 0,5 cm de diâmetro foram inoculados em meio Murashige & Skoog (1962) (MS) a 50% + 100 mg L-1 de caseína hidrolisada + 200 mg L-1 de levedura de cerveja, variando os tratamentos:A: 1 mmol de espermina + 2 mg L-1 de 2,4-D (ácido 2,4 diclorofenoxiacético) + 0,5 mg L-1 de NAA (ácido naftalenoacético); B: 1 mmol de espermidina + 2 mg L-1 de 2,4-D + 0,5 mg L-1 de NAA; C: 2 mg L-1 de 2,4-D + 0,5 mg L-1 de NAA. Não houve influência das poliaminas no crescimento dos calos. observou-se, nos calos tratados com espermidina, maior concentração celular de putrescina (582,37 µg g mf-1) aos 60 dias, maior teor de espermidina (502,54 µg g mf-1) e espermina (868,53 µg g mf-1) aos 40 dias de cultivo, quando se aplicou a própria poliamina. Conclui-se que a aplicação exógena de poliaminas em Hancornia speciosa não proporciona aumento no crescimento de calos. A oxidação promovida por longos períodos de cultivo in vitro induz aumento nos níveis de putrescina.; The effect of polyamines spermine and spermidine in the calluses growth of Hancornia speciosa Gomes was studied. Calluses with 0.5 cm diameter were inoculated in Murashige & Skoog (1962) (MS) medium 50% + hidrolizated casein 100 mg L-1 + yeast 200 mg L-1...

Mycorrhizal dependency of mangaba tree under increasing phosphorus levels

Cardoso Filho,Júlio Alves; Lemos,Eurico Eduardo Pinto de; Santos,Tania Marta Carvalho dos; Caetano,Luis Carlos; Nogueira,Marco Antonio
Fonte: Embrapa Informação Tecnológica; Pesquisa Agropecuária Brasileira Publicador: Embrapa Informação Tecnológica; Pesquisa Agropecuária Brasileira
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/07/2008 EN
Relevância na Pesquisa
47%
The objective of this study was to evaluate the mycorrhizal dependency of mangaba tree (Hancornia speciosa) plantlets, under increasing levels of phosphorus fertilization. The experimental design was completely randomized in a 4×5 factorial arrangement with three mycorrhizal fungi inocula - Gigaspora margarita, Glomus etunicatum, or a pool of native mycorrhizal fungi (Acaulospora longula, Glomus clarum, Gigaspora albida, Paraglomus sp.) -, and a nonmycorrhizal control, in combination with five levels of phosphorus applied to the substrate: 0, 25, 50, 75, and 100 mg kg-1. After 180 days of growth, plantlets with inoculation of native mycorrhizal pool produced more shoot and root dry biomass and had higher shoot phosphorus content and accumulation. The noninoculated control showed the lowest values, independently of the phosphorus level. The highest relative mycorrhizal dependency occurred with the inoculation of native mycorrhizal fungi. Plants with mycorrhizal fungi did not respond to phosphorus addition above 50 mg kg-1. Mangaba tree is highly dependent on mycorrhiza, but the degree of dependency varies according to phosphorus levels and fungal inocula. In general, mangaba tree is more responsive to mycorrhizal fungi inoculation than to phosphorus addition.

Characterization of nutrient deficiency in Hancornia speciosa Gomes seedlings by omitting micronutrients from the nutrient solution

Bessa,Layara Alexandre; Silva,Fabiano Guimarães; Moreira,Marialva Alvarenga; Teodoro,João Paulo Ribeiro; Soares,Frederico Antônio Loureiro
Fonte: Sociedade Brasileira de Fruticultura Publicador: Sociedade Brasileira de Fruticultura
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/06/2013 EN
Relevância na Pesquisa
26.32%
Hancornia speciosa Gomes (Mangaba tree) is a fruit tree belonging to the Apocynaceae family and is native to Brazil. The production of seedlings of this species is limited by a lack of technical and nutritional expertise. To address this deficiency, this study aimed to characterize the visual symptoms of micronutrient deficiency and to assess growth and leaf nutrient accumulation in H. speciosa seedlings supplied with nutrient solutions that lack individual micronutrients. H. speciosa plants were grown in nutrient solution in a greenhouse according to a randomized block design, with four replicates. The treatments consisted of a group receiving complete nutrient solution and groups treated with a nutrient solution lacking one of the following micronutrients: boron (B), copper (Cu), iron (Fe), manganese (Mn), zinc (Zn), and molybdenum (Mo). The visual symptoms of nutrient deficiency were generally easy to characterize. Dry matter production was affected by the omission of micronutrients, and the treatment lacking Fe most limited the stem length, stem diameter, root length, and number of leaves in H. speciosa seedlings as well as the dry weight of leaves, the total dry weight, and the relative growth in H. speciosa plants. The micronutrient contents of H. speciosa leaves from plants receiving the complete nutrient solution treatment were...

Sealing and explant types on the mangaba micropropagation

Sá,Aline de Jesus; Lédo,Ana da Silva; Lédo,Carlos Alberto da Silva; Pasqual,Moacir; Silva,Ana Veruska Cruz da; Silva Junior,Josué Francisco da
Fonte: Editora da Universidade Federal de Lavras Publicador: Editora da Universidade Federal de Lavras
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/08/2012 EN
Relevância na Pesquisa
36.78%
In micropropagation, especially for mangaba tree botanical variety of Northeastern Brazil, limiting aspects such as ethylene accumulation in the cultivation flask and loss of vigor in subcultures have been observed. This study was aimed at assessing the technical and scientific knowledge of the in vitro propagation of botanical mangaba tree variety and at improving the micropropagation protocol, establishing the in vitro cultivation time, the best type of flask sealing and explant at different micropropagation stages. For the establishment phase and for the first and second subcultures, the MS medium with 3% sucrose and 0.6% agar, supplemented with 1 mg L-1 IAA and 1 mg L-1 BA was used. Evaluations were performed at 30, 50 and 65 days of in vitro cultivation. The best types of flask sealing for the establishment phase were the PVC film and Para-film® and for the first subculture the Para-film® seal. In the second subculture the PVC film and Para-film® seals promoted the best growth. The median and basal nodal segments presented the best performance in the first subculture. No significant effect of explant type was observed in the second subculture. The ideal subculture interval in the establishment phase and the first and second subcultures is 50 days.

Development of in vitro propagation and conservation protocols of the native brazilian mangaba tree.

LEDO, A. da S.; SA, A. J.; SILVA JUNIOR, J. F. da; MUNIZ, A. V. C. da S.; DINIZ, L. E. C.; LEDO, C. A. da S.
Fonte: Acta Horticulturae, ISHS, n. 918, 2011. Publicador: Acta Horticulturae, ISHS, n. 918, 2011.
Tipo: Artigo em periódico indexado (ALICE)
PT_BR
Relevância na Pesquisa
36.48%
2011

Mycorrhizal dependency of mangaba tree under increasing phosphorus levels.

CARDOSO FILHO, J.A.; LEMOS, E.E.P. de; SANTOS, T.M.C. dos; CAETANO, L.C.; NOGUEIRA, M.A.
Fonte: Pesquisa Agropecuária Brasileira, Brasilia, DF, v. 43, n.7, p.887-892, jul. 2008. Publicador: Pesquisa Agropecuária Brasileira, Brasilia, DF, v. 43, n.7, p.887-892, jul. 2008.
Tipo: Artigo em periódico indexado (ALICE)
EN
Relevância na Pesquisa
47%
The objective of this study was to evaluate the mycorrhizal dependency of mangaba tree (Hancornia speciosa) plantlets, under increasing levels of phosphorus fertilization. The experimental design was completely randomized in a 4´5 factorial arrangement with three mycorrhizal fungi inocula ? Gigaspora margarita, Glomus etunicatum, or a pool of native mycorrhizal fungi (Acaulospora longula, Glomus clarum, Gigaspora albida, Paraglomus sp.) ?, and a nonmycorrhizal control, in combination with five levels of phosphorus applied to the substrate: 0, 25, 50, 75, and 100 mg kg-1. After 180 days of growth, plantlets with inoculation of native mycorrhizal pool produced more shoot and root dry biomass and had higher shoot phosphorus content and accumulation. The noninoculated control showed the lowest values, independently of the phosphorus level. The highest relative mycorrhizal dependency occurred with the inoculation of native mycorrhizal fungi. Plants with mycorrhizal fungi did not respond to phosphorus addition above 50 mg kg-1. Mangaba tree is highly dependent on mycorrhiza, but the degree of dependency varies according to phosphorus levels and fungal inocula. In general, mangaba tree is more responsive to mycorrhizal fungi inoculation than to phosphorus addition.; 2008

Variabilidade de plantas e progênies de populações naturais de Hancornia speciosa Gomes do Cerrado; Plants and progenies variability of Hancornia speciosa natural populations from Brazilian Cerrado

GANGA, Rita Maria Devós
Fonte: Universidade Federal de Goiás; BR; UFG; Doutorado em Agronomia; Ciências Agrárias Publicador: Universidade Federal de Goiás; BR; UFG; Doutorado em Agronomia; Ciências Agrárias
Tipo: Tese de Doutorado Formato: application/pdf
POR
Relevância na Pesquisa
47.19%
The mangaba tree (Hancornia speciosa Gomes) is a fruit tree native from Brazil with potential for domestication, due to its excellent smell, flavor and texture. However, genetic conservation and breeding programs of these species are in an initial developmental phase. This way, this research aimed to characterize trees and fruits of natural populations of H. speciosa, as well as evaluate the distribution of phenotypic variability among them; evaluate progenies of mangaba trees that compose the Escola de Agronomia e Engenharia de Alimentos of Universidade Federal de Goiás (EA/UFG) germplasm collection and estimate genetic parameters for the initial development of plants in the field. Mangaba trees populations have been sampled in different locations of the Brazilian Cerrado, including the states of Goiás, Tocantins, Mato Grosso, Mato Grosso do Sul, and Bahia, totaling 109 mother plants of 35 populations of the botanic varieties pubescens, gardneri, speciosa and cuyabensis. In relation to the trees, plant height, stem perimeter, and number of fruits per plant were taken. From a sample of five fruits per plant, individual measures have been taken, such as: length, diameter, weight, total weight of seeds, average seed weight, pulp plus peel weight...

Caracterização de frutos e de mudas de mangabeira(Hancornia speciosa Gomes) de Goiás; Characterization of fruit and seedlings Mangabeira (Hancornia speciosa) of Goiás

VIEIRA, Muza do Carmo
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Agronomia; Ciências Agrárias Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Agronomia; Ciências Agrárias
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
26.48%
Mangabeira (Hancornia speciosa) is a fruit tree, native to Brazil and found in various regions of the country, from the Coastal Plains and Southeast. We conducted this study in order to characterize fruits and seedlings in nursery and field mangabeira of different plants and natural areas of occurrence in the Cerrado of the State of Goiás ten areas were selected and each were chosen randomly plants were in full production. These plants were collected up to 12 fruits. Separating samples of five ripe fruit per plant are evaluated the following characteristics: weight, transversal and longitudinal directions, the total number of seeds and the total mass of seeds. Each pulped fruit and seeds washed and dried, separated samples per plant and a subsample of these two seeds were sown in separate tubes and for evaluation of emergency (%) and emergence speed index (ESI) (%). In the nursery, seedlings originated from seeds that were evaluated: length (cm) and number of air p sheets (NPF). Data were collected monthly for each offspring to the tenth evaluation. Ultimately, they separate, and these six plants, three samples per array seedlings were planted in the field at the School of Agronomy and Food Engineering - UFG and three in the Federal Institute Campus Urutaí Goiás-GO and underwent monthly assessments leading into account the diameter (mm) length (cm) and number of pair of sheets. Among matrices test was performed for average...

Cultivo e conservação in vitro de Hancornia speciosa Gomes

Fonte: UNIVERSIDADE FEDERAL DE LAVRAS; DBI - Programa de Pós-graduação; UFLA; BRASIL Publicador: UNIVERSIDADE FEDERAL DE LAVRAS; DBI - Programa de Pós-graduação; UFLA; BRASIL
Tipo: Tese de Doutorado
PT_BR
Relevância na Pesquisa
26.18%
Tese apresentada à Universidade Federal de Lavras, como parte das exigências do Programa de Pós-Graduação em Fisiologia Vegetal, para a obtenção do título de Doutor.; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Caracterização agronômica de variedades botânicas de Hancornia speciosa Gomes do Cerrado; Agronomic characterization of botanical varieties of Hancornia speciosa of the Cerrado

Silva, Sandra Máscimo da Costa e
Fonte: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Agronomia (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG) Publicador: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Agronomia (EAEA); Escola de Agronomia e Engenharia de Alimentos - EAEA (RG)
Tipo: Tese de Doutorado Formato: application/pdf
POR
Relevância na Pesquisa
47.16%
We conducted this study in order to evaluate the phenological, characterized physically and chemically characterize morphologically the fruits and plants of four varieties of botanical H. speciosa Gomes Cerrado. The study was conducted from june 2009 to august 2011, the germplasm bank Hancornia speciosa EA/UFG, located in Goiânia, GO whose geographical coordinates place: height 16 ° 35'39 "S, length 49 ° 17'07" W and 733 m level.The soil is oxisol, medium texture and smoothly undulating relief. According to Köppen, the climate is Aw. For all statistical analyzes we used the software R. Means were compared by the Scott-Knott test at 5% probability.In chapter three were evaluated fortnightly, phenology of 57 progenies of four botanical varieties mangaba tree. These events were divided into vegetative and reproductive phenophases. For evaluation, we used a scale ranging from zero through ten. The results indicate that the flowering mangaba tree occurs throughout the year, with greater intensity in the early summer. The renewal of the leaves of H. speciosa occurs at the end of the drought, at the peak of the reproductive phase, for all botanical varieties. The development and maturation of fruits occur in the period august-november until the beginning of summer. There is variation in the duration and time of occurrence of phenological events among botanical varieties. In chapter four evaluated the main physical and chemical characteristics of fruits of three botanical varieties (cuyabensis...